Festo DFPD Series Instructions

DFPD-...-C
Semi-rotary drive
Instructions | Operating
8118809
2019-09
[8118811]
Translation of the original instructions
© 2020 all rights reserved to Festo SE & Co. KG
1 About this document
1.1 Purpose of the document
This document describes the use of the above-mentioned product.
1.2 Applicable documents
All available documents for the product è www.festo.com/pk.
1.3 Target group
The document is targeted towards individuals who mount and operate the
product.
2 Safety
2.1 General safety instructions
– Only use the product in original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– Take into consideration the ambient conditions at the location of use. Corros-
ive environments reduce the service life of the product.
– Observe labelling on the product.
– Prior to mounting, installation and maintenance work: Switch off compressed
air supply and secure it from being switched back on.
– Exhaust drive prior to assembly, installation and dismounting.
– Protect the device from pressure fluctuations. Use overpressure valves and
pressure regulators.
Operating medium
– Only use compressed air in accordance with the specifications
è 14 Technical data.
– Use only unlubricated compressed air under normal conditions. Once the
product has been used with lubricated compressed air, it must continue to be
operated with lubricated compressed air only.
Return to Festo
Hazardous substances can endanger the health and safety of personnel and
cause damage to the environment. To prevent hazards, the product should only
be returned upon explicit request by Festo.
– Consult your regional Festo contact.
– Complete the declaration of contamination and attach it to the outside of the
packaging.
– Comply with all legal requirements for the handling of hazardous substances
and the transport of dangerous goods.
2.2 Intended use
The DFPD semi-rotary drive is intended to actuate process valves, such as ball
valves and butterfly valves with a rotation angle from 0° (valve closed) to 180°
(depending on design).
NOTICE!
The operating torque of the drive must not be greater than the maximum permiss-
ible torque listed in ISO 5211 in relation to the size of the mounting flange and of
the coupling.
2.3 Training of qualified personnel
Installation, commissioning, maintenance and disassembly should only be con-
ducted by qualified personnel. The skilled personnel must be familiar with the
installation of pneumatic control systems and trained in how to work with the
media used.
3 Additional information
– Accessories è www.festo.com/catalogue.
– Spare parts è www.festo.com/spareparts.
4
Contact your regional Festo contact person if you have technical questions
è www.festo.com.
5
5.1
5.1.1
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
8118809
1 Mounting thread for limit switch or
position sensor
2 Transmission shaft (shaft groove
shows the process valve position –
here closed)
3 Mounting thread for pneumatic
NAMUR switching valve
4 Mounting thread for coding pin
5 Compressed air supply port (4)
6 Mounting thread for pneumatic
NAMUR switching valve
7 Mounting thread for coding pin
8 Compressed air supply port (2)
Fig. 1 Product design DFPD
A shaft is guided outward on both sides through the housing. Through this, the
reaction torque is transmitted to a process valve aB and, if applicable, a limit
switch or position sensor 2. The end stops can be adjusted in the range ± 5°
using the end position adjustment on both sides aJ.
5.2
The piston movement of the DPFD is transformed using rack & pinion kinematics
(rack and pinion principle) into a swivel motion of the transmission shaft.
Double-acting semi-rotary drives
Fig. 2 Symbol for double-acting semi-rotary drive
The pressurisation and exhausting of the cylinder chamber leads to an opening /
closing movement of the drive.
Single-acting semi-rotary drives
Fig. 3 Symbol for single-acting semi-rotary drive
Return is through spring force.
Service
Product overview
Configuration
Product design
Function
9 Mounting thread adapter accord-
ing to VDI 3847-2 (only -VDE2)
10 End position adjustment on both
sides
11 Mounting thread for process valve
according to ISO 5211
12 Coupling for process valve
13 Centring ring for mounting on
adapter bridge (only -C-...)
14 Leakage slot
15 Supply port (2) (only -VDE2)
16 Supply port (4) (only -VDE2)